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SUPPLEMENTAL FINANCIAL STATEMENT DATA (Tables)

3 Months Ended

Apr. 03, 2026

Balance Sheet Related Disclosures [Abstract]

Schedule of reconciliation of cash and cash equivalents, and restricted cash

​

​	​	​	​	​	​	​
​	​	April 3,		​	January 2,
​	​ ​ ​	2026		​ ​ ​	2026
​	​	(in thousands)
Cash and cash equivalents	​	$	28,278	​	$	65,919
Restricted cash	​		5,288	​		—
Total cash, cash equivalents, and restricted cash shown in the consolidated statement of cash flows	​	$	33,566	​	$	65,919

Schedule of equipment and leasehold improvements

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​	​	​	​	​	​	​
​	​	April 3,		​	January 2,
​	​ ​ ​	2026		​ ​ ​	2026
​	​	(in thousands)
Furniture and fixtures	​	$	5,525	​	$	5,157
Computer hardware and software	​		61,119	​		59,687
Leasehold improvements	​		4,568	​		4,343
Equipment under finance leases	​		7,963	​		7,471
Automobiles, trucks, and field equipment	​		3,939	​		4,053
Subtotal	​		83,114	​		80,711
Accumulated depreciation and amortization	​		(52,160)	​		(49,220)
Equipment and leasehold improvements, net	​	$	30,954	​	$	31,491

Schedule of accrued liabilities

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​	​	​	​	​	​	​
​	​	April 3,		​	January 2,
​	​ ​ ​	2026		​ ​ ​	2026
​	​	(in thousands)
Accrued subcontractor costs	​	$	26,612	​	$	37,123
Accrued bonuses	​	​	7,628	​	​	27,478
Employee withholdings	​		2,781	​		5,999
Compensation and payroll taxes	​		3,741	​		5,534
Rebate and other	​	​	5,288	​	​	—
Accrued accounting costs and taxes	​		4,798	​		6,300
Total accrued liabilities	​	$	50,848	​	$	82,434

Schedule of changes in the carrying value of goodwill by reporting unit

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January 2,

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Additional

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Additions /

​

April 3,

​

​ ​ ​

2026

​ ​ ​

Purchase Cost

​ ​ ​

Adjustments

​ ​ ​

2026

​

​

(in thousands)

Reporting Unit:

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​

​

​

​

​

​

​

​

​

​

​

Energy

​

$

170,835

​

$

—

​

$

—

​

$

170,835

Engineering and Consulting

​

​

8,695

​

​

—

​

​

15

​

​

8,710

​

​

$

179,530

​

$

—

​

$

15

​

$

179,545

Schedule of gross amounts and accumulated amortization of acquired identifiable intangible assets with finite useful lives

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April 3, 2026

​

January 2, 2026

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Gross

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Accumulated

​

Gross

​

Accumulated

​

Amortization

​

​ ​ ​

Amount

​ ​ ​

Amortization

​ ​ ​

Amount

​ ​ ​

Amortization

​ ​ ​

Period

​

​

(in thousands)

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(in years)

Finite:

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

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Backlog

​

$

11,600

​

$

10,258

​

$

11,600

​

$

9,853

​

1.0

Tradename

​

​

17,774

​

​

14,567

​

​

17,773

​

​

14,285

2.5

​

-

​

6.0

Non-compete agreements

​

​

1,836

​

​

1,563

​

​

1,835

​

​

1,535

​

4.0

​

-

​

5.0

Customer relationships

​

​

73,404

​

​

45,119

​

​

73,400

​

​

43,414

​

5.0

​

-

​

12.0

Total intangible assets

​

$

104,614

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$

71,507

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$

104,608

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$

69,087

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